Wastewater Treatment Market Size and Forecasts (2021 - 2031), Global and Regional Share, Trends, and Growth Opportunity Analysis Report Coverage:by Treatment Technology (Reverse Osmosis (RO) Membrane, Micro-Filtration (MF) Membrane, Ultra-Filtration (UF) Membrane, Nano-Filtration (NF) Membrane, Membrane Bio-Reactor (MBR), Chlorination, and Activated Sludge); Treatment Process (Biological, Chemical, Bio-Solids, and Others); End-User (Industrial, Commercial, Residential, and Government), and Geography (North America, Europe, Asia Pacific, and South and Central America)